Hitachi EX20UR-2 Manual page 117

UPPERSTRUCTURE / Swing Device
4. Remove plungers (9) (9 used), plate (11), hold-
7. Drive shaft (14) out of case (18) using a plastic
er (19), and pins (20) (3 used) from rotor (10). hammer.
5. Remove socket bolts (17).
: 8 mm
6. Remove retaining ring (5) from rotor (10). Re-
move washer (6), spring (7) and collar (8).
=CIZ
A
CAUTION: When removing retaining ring
(5), apply pressure with a pressing tool
onto washer (6) to press down washer (6)
and spring (7). If washer (6) and spring (7)
are not pressed down, they may be fly off
because of the spring tension when re-
moving the retaining ring (5), possibly re-
sulting in personal injury.
Pressing Tool: ST 4114
8. Remove 0-ring (16) from case (18).
W506-02-06-001
W02-05-31